Blobs, channels and "cigars": morphologies of liquids at a step.

  title={Blobs, channels and "cigars": morphologies of liquids at a step.},
  author={Mike Brinkmann and Ralf Blossey},
  journal={The European physical journal. E, Soft matter},
  volume={14 1},
We have studied the equilibria of liquid droplets wetting a step edge with an opening angle 0 < alpha < pi by a combination of analytical and numerical methods. Depending on the wetting properties of the substrate walls and on the liquid volume, different locally or globally stable liquid morphologies are found. Complete spreading of the liquid along the bottom edge of the step is observed at equilibrium contact angles theta satisfying theta < theta(s) = pi/2 - alpha/2. If the contact angle… CONTINUE READING